To be fair, if you forced programmers to write efficient code you would just make everything more expensive and flood the market for unskilled labor with university graduates that can't find their own ass.
If it really did come down to that, I would still rather people had to pay more for software and less for hardware, because software has a comparatively minuscule environmental impact.
Actually no. If programmers actually learned how to properly program the machines, we'd not be in the mess we are in right now. Abstraction is the cancer that got us to where we are.
Nobody has any actual clue what they're doing, everyone keeps writing code for the compiler hoping for the best and the rest of the world has to buy new machines because the programmers of the last decades sucked.
That, btw, includes most of you people reading this. You're fucking welcome.
Companies will invest in what pays the bills. And hyper optimising for customers with no money isn’t it.